Pfannes, Kristina R, and Angela Baier. 2002. ““Devil’s Gardens” in the Ecuadorian Amazon - Association of Theallelopathic Tree <i>Duroia hirsuta</i≫ (Rubiaceae) and Its ‘gentle’ Ants”. Revista De Biología Tropical 50 (1):293–301. https://revistas.ucr.ac.cr/index.php/rbt/article/view/16284.